That's correct from my experience.  I've also used tangle nets (aka fishing
nets) by rolling them loosely and using various kinds of bait (very small
fish chunks - too big attracts big inverts and fish..,  pieces of coconut,
fruit, etc.).  This has been moderately successful at most SCUBA depths but
are subject to typhoons, trespassers, etc. if too shallow.
Regards, Charles
 
-----Original Message-----
From:   Conchologists of America List [mailto:[log in to unmask]] On
Behalf Of Cecil Bankston
Sent:   Monday, 31 August, 1998 11:06
To:     [log in to unmask]
Subject:        Re: Dredging
 
-----Original Message-----
From: Paul R. Monfils <[log in to unmask]>
Date: Thursday, August 27, 1998 3:51 PM
Subject: Re: Dredging
 
 
>Andy,
>No personal experience with this device, but this is the "tangle net" so
often
>mentioned in collection data from the Philippines.  Apparently they use it
>commonly there.
>
The tangle nets I have seen in the Philippines are not tangles of frayed
ropes but are long, narrow, rather conventional-looking nets that are
lowered to the bottom in deep water and left for a time to allow shells to
get entangled in them.  One of the long sides has weights to keep it on the
bottom and the other is free to sway with the current.
 
Cecil N. Bankston
Baton Rouge, LA
          USA